Electrical Instructions - Philips 107E61/00 Service Manual

1. General point
1.1 During alignment and measurement supply a distortion free
AC-mains voltage to the apparatus via an isolating transformer with
a low internal resistance.
1.2 All voltages have to be measured or applied with respect to
ground, unless otherwise stated.
Note: Not all heatsinks are grounded, avoid using heatsinks as ground.
1.3 The term "Linear RGB" is meant the 0.7 Vpp video with separate
SYNC ( TTL Level ).
Reference factory preset mode timings
(format of pattern generator CHROMA-2135)
are shown in TABLE 1 to TABLE 8. Preload timing TABLE 9 to TABLE 22.
1.4 Any external voltage source should have low internal impedance.
The alignment has to be done in room temperature 25 ± 5°C.
1.5
1.6 Digit control buttons for
OSD MENU :
LANGUAGE
ZOOM
ADJUST HORIZONTAL
ADJUST VERTICAL
ADJUST SHAPE
ADJUST COLOR - 3 colour temperatures (9300°K, 6500°K, sRGB)
1 user preset independent RGB adjustment
RESET TO FACTORY SETTING
EXTRA CONTROLS
MODEL SELECT
CLOSE MAIN CONTROLS
2. Pre warm -up
2.1 Align in pre-warmed condition at least 30 minutes during manufacturing.
3. Main chassis alignment
3.1Power supply adjustment :
All supply voltages were fixed and adjustment is unnecessary.
(Check the voltages on Chassis line)
3.2 Apply a 31.47KHz / 60Hz 640x480 cross-hatch signal.
3.2.1 Adjust BPLUS of factory setting to obtain the anode voltage
25.0KV+/-0.5KV at zero beam current .
3.3 Monitor the following auxiliary voltages.
+5 source across 7153 Pin out and GND
+6 source across C2154
+12 source across C2155
-12 source across C2156
+82 source across C2153
source across C2152 ( + to Gnd) +190V Ó
+190
-137 source across C2630

Electrical Instructions

+/-
- POSITION
- SIZE
- POSITION
- SIZE
- ADJUST SIDE CURVE
- PINCUSHION
- BALANCE
- ADJUST SIDE ANGLES
- TRAPEZOID
- PARALLELOGRAM
- ROTATE IMAGE
- ADJUST MOIRÉ
HORIZONTAL
VERTICAL
- DEGAUSSING
+5V Ó 0.15 VDC
+6.1V Ó 0.2 VDC
+12.5V Ó 0.4 VDC
Ó 0.4 VDC
-12.5V
+82.0V Ó 1.5 VDC
3.0 VDC
Ó 10.0 VDC
-137V
4.General conditions for aging and alignment
4.1 Aging/burn-in:
Use low mains AC supply (90Vac) for monitor first power on test.
Pre-adjust the Focus till cross hatch pattern can be clearly visible then
enter the aging mode. (Press both Up and Down keys, and then switch
-on the monitor with signal cable disconnected.)
4.2 During all alignments, supply a distortion free AC mains voltage to
the monitor set via an isolating transformer with low internal impedance.
4.3 All measurements are carried out at nominal mains voltage, unless
otherwise stated.
4.4 Align in pre-warmed condition, at least 30 minutes warm-up with
nominal light output.
4.5 Purity, geometry and subsequent alignments should be carried
out in a magnetic cage with correct magnetic field.
Northern Hemisphere: H = 0, V = 450 mG, Z = 0
Southern Hemisphere: H = 0, V = -500 mG, Z = 0
Equatorial Support
4.6 All voltages are to be measured or applied with respect to
ground , unless otherwise stated.
Attention : Not all heatsinks are GND, avoid using heatsinks as ground.
4.7 The white balance and purity has to be adjusted in dully lighted
room.
4.8 All alignments have to be done in a room with a temperature of
25 ± 10 °C.
5.Alignment of Vg2, cut -off point, white tracking
5.1 EEPROM data has to be pre-set according to software approval
sheets, sheet-139,sheet-140: (loaded beforehand with average values
of mode pre-set data and mode pre-set selection bytes.) The following
table is for reference only. Optimum values should be determined by
"
Factory(ME) via official "Factory Notice".
In factory, alignments are done via I
but the set can also be manually aligned. Enter "factory mode"
by press ing both Up and Down keys while power
" "
Select "factory".
5.2 External degaussing
Remove ferromagnetic measuring equipment, Iron tablet, etc.,
in the neighbourhood of the apparatus within half a meter.
Position the set in E-W direction and degauss well via external
degaussing coil. Slowly increase the distance between the picture
tube and degaussing coil, keeping the coil in parallel with the screen
of CRT. When the distance is more than 2m, turn off the degaussing
current.
5.3 Adjustment mode: 68.7KHz/85Hz with correctly adjusted video
size 306x230mm. Use color-analyzer (Minolta CA-100) to adjust
cut-off and white balance.
Before alignment, set initial data as item 5.1
and brightness set to 50%.
107E6 CRT
Go to cover page
: H = 0, V = 0 mG, Z = 0
"
2
C on the I/F cable DDC bus ,
"
"
-on.
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